Log turner



Jan. 26, 1932'.

J. A. WEBER 1.0a TURNER Filed Dec. 1'7, 1929 4 Sheets-Sheet 1 ATTORN WEBER Jan LOG TURNER Filed Dec. 4 Sheets-Sheet 2 b" 14 Weber INVENTOR Jan. 26, 1932'. A W R 1,842,465

LOG TURNER Filed Dec. 17, 1929 4 Sheet s-Sheet 4 c/0/7/7 ,4 Weber INVENTOR Patented Jan. 26,

teatime as as AQWEBER, or PORTLAND, caisson LOG TURNER A l ca ion: filed December 17,1929. Serial No. 414,7s2.

also used in theremoving ofthe cants and the i V uncut Poiition'of the logi rom thecarria' e.

consists of independent "coacting camniing elements disposedupon "the roll Waywvith means for actuating the same independently hy'powor manipulation means that are actu- I f ated hy-handor foot leversand having a cam actuated turndown arln disposed upon the carriage foriturning-the log. orcant by power means. sAyjjun p chain is provided for in partingmovement-to the log orcant laterally of the carriage structure in either direction as desireclf" The i power driven cam for iniparting movement to the log has a plurality otcanin ing surfaces'disposed thereupon, the purpose offlwhich is-toincrease the rapidity of the movement of the cam, as thenioveinent p'ilogres'ses and at the completion of the cycle,

of operation of the movement of the log to have thecamsdisappear below "the bolster ofthelo'g carriage in orderthat the log may rest: directly lupon the carriage structureand against thecarriagelknee.- J

.Myinizention is primarily iutendedfor use in sa'wflmills and is especially valuable Where relatively small logs are to be sawed which necessitates therapid handling of thelogs to conserve time and} to increase the output of 1 A furtherohject of; my'invention is to reengaging the surface, o ftt he log to aid in the turning operation. Through; thense of my exterior, or interior, surface of the log. as no po1nt,,or hooks, are used in the operation of the same.

y The devicei rits preferredembodiment riage and illustratingthe driving mechanism duce thewdamage to the outer surface ofthe takenlon line l I u dicatedfl device no jdainage'canpossibly result to the aTlie primary ohjectioi invention. is to increase the rapidity ith hich the log or cant can be precisely placed upon theo arriage and from which thelsame may he removed or turnedduring the sawingoperation, further object 0t my invention consists.

in providing simple and efiicient means for. 55V

the rapid handling of the log, or of the cant,

in the sawing operation. 3

A still further object of my invention con: sists in providing means for thei rapid an d economical handling of: logs and oants andyouh through the use of Whichthe surface of the log or cant is conserved.

With these and incidental ohjectsfin iew, the-inyention consists in certain novel features otconstruction and combination of parts, the essential elements of which are set forth in the appended claims, and a preferred form ofembodiment-pf Whichis hereinafter shown with reference to the drawingswhich accompany and forina part of specific'ation. j X i i In thedrawings:

Fig. 1 is a top, plan View] of my assem-, bled deviceshown in place upon a log carriage and adjacent the log rollay. l

Fig. 2 is a sectional, end View offtheasse n bled device, the same being taken on line of 1 looking in the direction indicated.

3 is a sectional, side iew of the turn;: do na-rin illustrating the arm as heing re: pressed within the holster of the carriage. The same is taken on line 3 3 of F g 1 looking in the direction indicated. 7 y a;

Fig-[4 is a sectional, end ,view 'ofjthe can for the shaft and illustrating the locking pin for usein the operating of the cammingmech;

anism for one cycle ofoperation; the same is 4 of Fig.1, looking inthe direction indicated.

Fig.5 is a top, plan-view ofthe mechanism illustrated in Fig. 4, thesame being taken on line 5+5 of El 4 looking in the direction in} Fig. 6 is a ll. agmentary, sectional, side View of the .mechanism illustrated inFig. Set-he sameh'cing taken on line 66 of Fig. 5 10.01;- ing in the direction indicated y F 7' is a fragmentary, end iew of the mechanism illustrated in Fig. 6 the sa'1n 2.be

N F 'C ing taken on line 7-7 of Fig. 6, looking in the direction indicated.

Fig. 8 is a diagrammatical layout of a part of the log carriage, of the knee and the cam and the turndown arm disposed upon the carriage for the ejection of the log from the carriage, and illustrating a log which has been slabbed from one side and illustrating one of the camming surfaces disposed upon the roll way being raised to receive the log when transferred thereupon.

Fig. 9 is a diagrammatical layout of the camming surface, the knee and the receiving cams and illustrating thelog as having been partially transferred from the carriage to the roll'way.

Fig. 10 is a diagrammatical layout of the cam, the booster, the receiving cams dis aosed upon the roll way and the log and illustrating the log as being transferred with its flat side down upon the carriage.

Fig. 11 is a fragmentary, sectional, end elevation of a portion of the log carriage and of the knee, and illustrating the'log as having been transferred with its flat side down and as resting upon the chain for transferring the logtransversely of the carriage and against the knees of the carriage.

Fig. 12 is a sectional, end View of a part of the carriage and illustrating the chain as being in position for transferring a log or cant fromthe log carriage to the live rolls adjacent to, and parallel with the travel of the carriageQ Fig. 13 is a sectional," end View of the rope carrying spider and clutch, the same being taken on line 1313 of Fig. 2, looking in the direction indicated.

Like reference characters refer to like parts throughout the several views.

Reference numeral 1 designates a fabricated saw mill carriage having a power driven shaft 2 running longitudinally there- The shaft 2 is driven by any suitable power means, as by a counter shaft 3, that leads to a source of power not here shown. A gear 4 is disposed upon shaft 2 and a gear 5 is disposed upon shaft 3 and coacts with gear 4, for transmitting the power from'shaft 3 to shaft 2. I A driving sprocket 7 is secured uponthe shaft2, a counter shaft 8 is journaled in spaced relationship with the driving sprocket 7 and has, disposed thereab'out a driven sprocket 9, which is in registerable alignment with a driving sprocket 7. The sprocket 9 rotates freely about the shaft. A sprocket chain 6 is disposed about the driving and the driven sprockets and transmits the power from shaft 2 to the rotatable sprocket 9.

Directly mountedupon counter shaft 8 is a cam 10 which has camming surface 18 whose contour is uneven and which is climaxcd by a sharp surfaced point 23.

Referring to Fig. 5, a yoke 44B is journaled about the shaft 8 on its one end and is supported by bracket 12A which is a part of the main frame 12 on its other end. A bearing 43B is disposed within the collar of the yoke and a lug 44A is made integral with one edge of the collar of the yoke. A locking pin 42 is slidably disposed and outwardly extends from the bearing 4313. A lever 43 is pivotally secured to lug 44A by pin 44. The locking pin 42 is movably secured to lever 43 by pin 43A. A cable 45 is secured to the free end of lever 43. A spring 46 under tension is secured on its one end to one leg of the yoke and on its other end to the free end of lever and is adapted to normally maintain the locking'pin 42 in intimate contact with the outer peripheral surface of disk 9B. The disk 9B is fixedly secured to shaft 8 and has on its outer periphery an offset or shoulder 90 in which locking pin 42 normally rests. A barrel 37 is made integral with disk 9B and is also disposed about shaft 8. A recess 36 is disposed through barrel 37 and disk 9B. A slot 39A is disposed within the barrel 37 and at right angles to that part of the recess 36 which is disposed in barrel 37. A locking pin is slidably disposed within recess 36 and a'shaft 39 is slidably disposed within slot 39A andis secured on its one end to looking pin'35. Slot 39A is in registerable alignment with offset 96. Since the lockin pin 42 normally rests within the offset 9 the shaft 39 connected to locking pin 35 is prevented from moving forward with slot 39A. A snring 38 is disposed within recess 36 which is adapted to normally maintain the locking pin 35 under tension. A roller 40 is rotatably jo'urnaled on the free end of shaft 39 and is in registerable alignment with the edge of locking pin 42. Stop 9A is secured to that side of sprocket 9 which faces disk 9B. Locking pin 35 has an engaging end 41 that is in registerable alignment with stop 9A.

Bearing this particular structure in mind, the mechanism illustrated in Figs. 5, 6 and 7 operates in the following manner: The power of shaft 3 is transmitted to shaft 2 which in turntransmits power to sprocket 9 that turns freely about shaft 8. When it is desired to place the cam 10 and its allied structure in operation, cable is pulled which releases locking pin 42 from the offset 9C disposed on the peripheral edge of disk 9B, and permitsshaft 39 to slide forward due to the spring 38 and locking pin 35 is pushed forward and catches on stop 9A disposed on the sprocket 9 which is continuously rotating.

This makes a driving locking engagement between the disk mechanism and the sprocket 9 and since the disk 9B and also the cam 10 are securely attached to shaft 8 they will rotate in the same direction that sprocket 9 rotates. The tension on the cable 45 is released immediately after the locking pin 42 is disengaged from the offset 90 and such reontheouterperiphery of'the disk9B.t When thediskztlB has completed one revolutionthe and maintaining locking pin 35' out of enti ga ement with stop 9A. a i

arm 11 is hi'ngedly journaled about jsournal pin 15 .thatis secured to frame 12.,

Tllefraine 1.2 is horizontally disposed and fixedly positioned upon the saw mill car- A'camming arm 1671s also hingedly journa led to the frame12 but is adapted to swing in the opposite direction from the cam; arm

11. It is positioned in a different horizontal planerfrom, and isadapted to: rest upon; cam

arlnll. Cam arm 16" has an even uppervsurface andan uneven lower surface withavery pronounced pr ectmgsurface Cam.

arm 11 has asubstantiallyeven upperisurface but has acut out portion 21A shaped to fit the;

contouriof the projecting surface 22 nearits nalinoperativeposition of the cam and cammi-ng-arlns is shownyin Figs. 1,3and 8,'where V inthe cam roller 13 is resting within the sock eta 18A of the camming surface 18 and cam-t iningarms 11 amt-16 are in substantially 1 horizontal position and resting "upon each other. m t i i The operation of the cam and camming arms-maybeea'sily followed in Fig. Sfwhich it shows l'number l pos1t1oni, F1g.;9 whichshows position number 2, Fig. which shows log 19 shownresting against knee 2O d'isposed position number 3,-Fig; 1 1 which shows position numbcrt. Referring to Sthe on carriage 1 is shown'as having been partly cut and ready toheturned for another cute ting. The application oi -tension uponcable 45 connects sprocket 9 with disk 9A which causes cam 10 to rotate inthe direction of the arrows, and as the cam is I'0tItG(l,iil12C21lil roller riding upon the camming surfacelfl lifts cain arm 11, which in turnlitts cam arm 1 1 6, asshown in Fig. 9. When the cam roller.

is about to reachthe sharp surface point123, the tip 21 ofcam arm ll is positioned "upon whenthe roller reaches thesharp surfaced a point 23; a shock is impartedtocam 11 which in turn shockscaln arm 16 and whiclrkieks the log 19ofi: balance and positively insures the turning of the log upon its; cut surface.

By this time theqcain 10 has completedits cycle ofrotation as the locking pin 35 has been disengaged from stop 9A and the cam mechanism again 'ln anormal posltion, as

ordertobreakthedrop whichthecani arm 11 takes when itTleavestpoint 23, resilient sup? port 2 tiis securedtothe carriage frame 111 direct alignment withvthe tip 21 of the cam niingarm 11 and as the armcdrops, the tip 21 falls upon theiresilient support 24 which pre-. ventsundue strainupon the arm 11.

To assistthe log turning cam 10 and cam v arms 11 andilfi and to prevent theoverturni-ng ofjthe log upon the roll way, a cam 25 is 'rockably secured to a pin 26 journaled within therollway 27. 'A line 28 passes! about the hub 29 0f the cam and as the line 28 is operatedby manual means, or other wise, itrotates in the direction ofthe arrows and the cam 25 is raised from itsnormalpoa sitronas lllustrated inFlgs. 2 and 11, 1n order,

that the flat side of the log that has been 31 secured to the roll way 27. a A line passes about a hub 32A of the cam and as the line is opera-tedthe cam is raised and rotates 1n the same direction as the arrows shown The cam-30 is substantially larger in diameter than the cam 25 and when raised shownr' in Fig; 10, withlthe log turned. In roller 40:coines in contact with the slopingi surface 457 of the lockingpi nl42' and gives way laterallya sirfiicientdistance to disengage the) end 41 oflocking pin 35 from stop 9A and the locking pin 42 engages the ofiset, 9C preventing backward rotation of the disk. 9B

into position asillustrated in Fig. 9isadapt ed to receive log 19ifit rolled over too much and thus prevents the over turning of the log upon theroll way. Each of the came 25 and l i 30 are independently actuated in 1 either direction by manipulating lines 28 and 32. p

After-the log has beenrhrought into the p0 sition-as illustrated in Fig. 10 the cam arms 11 andlG have returned to their normal positionsiandthe log then restspartly t upon the cams 25and' 30 and partly upon the carriage lilSElf-j within the hearing. A a hub 49 having steppedcalnfaces adapted to fit the faces onthe bearingisrotatably disposedupon the shaft and is maintained in intimatecontact withthecalngfaces of bearing 49A by a collar 48A fixedly; disposedabout the shaft. A

luralit of arms50are made inte ra'l with the hulivas illustratedin detail in Fig, 13. A, groove 51 is'disposed at the end of the arms and about 52 is disposed-therein. A head 54} having a pair ofslots 551s disposed at an angle in spaced relation to"permit verticolateral IHOVGIYLGHhOf the head in relation tothe carriage; P1ns56 are secured to the Referring to ig. 2, journal bearing 49A;-

sufficiently to contact with the log 19 which.

has been placed in the position shown in Fig. 10 by the action of the cam 10 and also cams 25 and 30. The forward movement of the shaft 48 and link 53 is not great but sufficient to impart vertical-lateral movement to the head. There is sufficient play within the journal bearing 49A to permit such movement as is here contemplated. "A sprocket 58 is secured about shaft 2 and is in registerable alignment with the head 54. V A sprocket chain 57 is disposed about the head 54 and the sprocket 58 and imparts continuous rotation to the head sprocket, not shown. The raising of the head 54 as above outlined places the chain 57 into contactwith the un der surface of the log 19 and this moves the log laterally toward the knees of the carriage as illustrated in Fig. 11.

While the form of mechanism herein shown and described is admirably adapted tofulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein shown and described, as it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow. H v r i What I claim is 1. Ina device of the class described, in combination with a saw mill carriage and a roll way, a shaft mounted upon the carriage, a continuous running sprocket mounted upon the shaft and normally free to rotate thereupon, a cam fixedly mounted upon the shaft,

camming turndown arms disposed in registerable alignment with the cam mounted upon the shaft, locking means edly disposed about the shaft, hand-manipulative means for engaging the locking means with the sprocket and subsequently disengaging said meansto cause a rotation of the cam through a singlecycle of operation and for normally raising the camming turndown arms, hand manipulative cams rockably disposed upon the roll way and in registerable alignment with the log disposed upon the carriage adapted to receive the log when partially rotated by the cam arms,

and power driven hand manipulative means" for imparting lateral movement of the log relative to the carriage and the roll way to position the log in its partially rotated position against the knees.

2. In a device of the class described, in combination with a saw mill carriage and a roll way, a plurality of turndown cam arms hingedly secured toand in line with the deck of the. carriage, and superimposed one above the other, a cam-disposed in registerable alignment with the cam arms and adapted to raise the cam arms, means for rotating the cam forzone cycle of operation in order to manipnlate the turndown cam arms, hand manipulative cams rockably secured to the roll Way and in registerable alignment with-the log disposed upon the carriage and adapted to receive the log when partially rotated by the cam arms, a plurality of transfer chains disposedtransversely of the carriage,'and means for manipulating the transfer chains into contact with the under side of a log for moving the log laterally relative to the carriage and the roll way in order to position the log against the knees of the carriage.

8. In a device of the class described, in combination with a saw mill carriage and a roll Way, a shaft journaled within the carriage, a sprocket rotatably disposed about the shaft and free to rotate thereon, hand manipulative means disposed about the shaft for locking the sprocket to the shaft, means for maintaining the sprocket in locked position for one cycle. of operation, a cam fixedly disposed about the shaft, turndown cam arms superimposed one upon the other hingcdly disposed in registerable alignment with the cam at the side ofthe carriage, said ar as being adapted for actuation by the cam, a pair of camsrockably journaled to the roll and. adapted to receive the log when turned by the cam a his, and means for moving the log laterally of the carriage and against the knees when the log has been rotated by the turndown cams.

4. In a device of the class described, in combination with a saw mill carriage, a pair of turndown cam arms hingedly disposed centrally and transversely of the carriage, one of said arms resting upon the other and adapted to swing in the opposite direction. said cam arms normally lying below the deck of the carriage, a shaft journaled within the carriage, a cam fixedly disposed about the shaft and in registerahle alignment with the cam arms, a freely running sprocket disposed upon the shaft in spaced relation with the cam, and means fixedly disposed upon the shaft and between the sprocket and the cam for locking the sprocket to the shaft.

5-.In a device of the class described, in

combination with a. saw mill carriage, a pair of turndown cam arms hingedly disposed centrally and transversely of the carriage, one of said arms resting upon the other and adapted to swing in the opposite direction, said cams normally lying below the deck of the carriage, a shaft journaled within the carriage, a cam fixedly disposed about the shaft and in registerable alignment with the cam arms, a freely rotatable sprocket disposed upon the shaft in spaced relation with Ann the cam,rmeans fixedly disposed upon the shaft and between the sprocket and the cam "for locking the sprocket to the shaft assembly, and automaticmeans for releasing the lockingwmeans after one cycle of rotation of thecam;

6. In a, device of the class described, in combination-with asaw mill carriage, a driv ing shaft journaledwithin the carriage, a

,0 counter shaft parallelly disposed within the carriage in spaced relationship with the driv-. ing shaft, a driving element fixedly disposed about the drivingshaft, a Zdrivenelement 3 rotatably disposed about the counter shaft,

a yoke fixedlydisposed about same shaft, a

cam disposed about the counter shaft, hinged means disposed at the side of the carriage and superimposed one above the other and adapted for being actuated by the cam, means disposed upon the counter 'shaftfor. engaging the side of the drivenelement freely disposedupon the shaft, and thereby rotate the counter shaft, and means associated \vith'the locking means for automatically releasing the driven element from engagement with the locking means after one cycle of operation of the cam. a

7. In adevice of the class described, in

combination, a saw mill carriage, a pair of turndowncam arms superimposed one above the other land hingedly disposed to swing in oppositedirections and normally lying below the surface of the carriage, a shaft h wjournaled within the carriage, a freely rotatable element disposed about the shaft, a

, cam fixedly disposed about the shaft, means 1 fixedly disposed upon the shaft for transmitting power from the freely rotatable elea ument tothe shaft, manually'operable means 1 i 4 forplacing inoperationv the first mentioned means, automatic means for breaking the revolution of the combinedmechanism after the cam completes onecycle of rotation, qWhich raises the turndown cam arms and rolls thelog over, a roll way disposed in spaced relation from the carriage, cams rockably secured thereto, said cams in registerable alignment with the log disposed upon thecarriage, and adapted to receivethe "log when being rotated by thecam'arms, manuto the knees. to" i ally ioperable means for manipulating the cams, a plurality of transfer chains disposed transversely of the carriage and in spaced relation to each other,and manually operable means for placing the chains above the surface of the carriage in order to move the log from the cams and laterally of the carriage JOHN, A. WEBER. 

